IEC 62979:2017 光伏模块 - 旁路二极管 - 热失控测试

标准编号：IEC 62979:2017

中文名称：光伏模块 - 旁路二极管 - 热失控测试

英文名称：Photovoltaic modules - Bypass diode - Thermal runaway test

发布日期：2017-08-10

标准范围

IEC 62979:2017(E)提供了一种方法，用于评估安装在模块中的旁路二极管是否易受热失控的影响，或者是否存在足够的冷却以使其经受从正向偏置操作到反向偏置操作的转变而不会过热。该测试方法特别适用于肖特基势垒二极管的测试，肖特基势垒二极管具有在高温下作为反向偏置电压的函数增加泄漏电流的特性，使其更容易发生热失控。

IEC 62979:2017(E) provides a method for evaluating whether a bypass diode as mounted in the module is susceptible to thermal runaway or if there is sufficient cooling for it to survive the transition from forward bias operation to reverse bias operation without overheating. This test methodology is particularly suited for testing of Schottky barrier diodes, which have the characteristic of increasing leakage current as a function of reverse bias voltage at high temperature, making them more susceptible to thermal runaway.

标准预览图